斜长石

The major petrogenetic minerals in the Tahe gabbro include plagioclase, olive, clinopyroxene and hornblende, coronitic-texture and poikilitic texture are obviously visible.

其主要造岩矿物由斜长石、橄榄石、单斜辉石及少量角闪石组成，具反应边结构和包含嵌晶结构。

Partially replaced by very fine symplectites of Amp + Pl ; e —Sample ZM651 , garnet porphyroblast with large amounts of inclusions

射电子图像； d —样品ZM641 ，绿辉石边部具有细粒的角闪石+斜长石后成合晶； e —样品ZM651 ，石榴石变斑晶核部

The original alkalic series of basalic magma evolutes into trachybasalt through crystallization differentiation of olivine and pyroxene, and the trachybasalt is transformed into alkalic rhyolite with remarkable Eu, Sr, Ba, Ti, P nagetive abnormalities through strong crystallization differentiation of plagioclase and also pyroxene Ti Fe oxides and apatite, all together leading to the loss of neutral (SiO 2=57%～63%) andesite and trachyandesite in the volcanic rocks in this area and appearance of bimodal volcanic rock combination feature.

原始碱性系列玄武质岩浆经橄榄石、辉石的结晶分异，向粗面玄武岩演化；粗面玄武岩经斜长石强烈的结晶分离作用，还有辉石、钛铁氧化物和磷灰石的分离结晶作用形成具显著Eu、Sr、Ba、Ti、P负异常的碱性流纹岩，导致本区火山岩缺失中性(SiO2=57%～63%)的安山岩和粗安岩，呈现双峰式火山岩组合的特点。

The feldspars from the γA1 and γAIIa show many clear metasomatic alteration features; the- refore, the authors genetically consider the albitized protolithionite granite and the albitized zinnwaldite granite to be metasomatic altered granites.

花岗岩中长石具有清楚的交代特征，晚期岩体中的钾长石的An和Ab组份十分低，斜长石中的An和OI组份也很低，说明钠长石化黑鳞云母花岗岩和钠长石化铁锂云母花岗岩为交代蚀变花岗岩。

Two types of cumulate gabbros are exposed in Wulatezhongqi area, including amphibole gabbros and olive gabbros. The major petrogenetic minerals in the Wengeng gabbros are olive, pyroxene, plagioclase and hornblend.

乌拉特中旗温更地区由角闪辉长岩和橄榄辉长岩组成的混杂堆晶岩系，主要造岩矿物为橄榄石、辉石、斜长石及角闪石等。

The ore-bearing porphyries of the Gangdese porphyry copper belt in the southern Tibet plateau possess the essential characteristics of adakite and formed from partial melting of subducted Tethyan oceanic crusts under eclogite facies conditions.

本文用冲江和拉抗俄两个矿区含矿斑岩的黑云母和斜长石斑晶测定了它们的~(40)Ar/~(39)Ar年龄，结果表明两个矿区虽然相隔百余千米，但形成时间非常一致。

Potassium feldspar and plagioclase xenocrysts are seen within these enclaves and the boundary between the host rock and the enclaves. These xenocrysts are trapped from the host magma by the enclave magma and are frequently resorbed into a round and sieve shape.

在包体内部或包体与寄主岩的边界均见有钾长石及斜长石捕虏晶，这种捕虏晶是包体岩浆从寄主岩岩浆中捕获的，常被熔蚀成筛状或浑圆状。

Chemical compositions and genetic characteristics of plagioclases, biotites and amphiboles of typical Yanshanian intrusions in the core of Dabie Orogenic Belt are presented.

分析了大别造山带核部典型燕山期侵入体中的斜长石、黑云母和角门石的化学成分和成因特点，并从矿物平衡角度讨论了典型侵入体岩石成因。

Ti-bearing clasts and anorthositic melt clasts were also observed.

主要的晶屑矿物有橄榄石、辉石、斜长石、和金属氧化物。

Geochemical characteristics indicate S-type granites and volcanic rocks depleted in sodium and enriched in potassium, with 62.42%～78.02% w(SiO2), 7.66%～9.13% w(K2O+Na2O), 1.18～2.62 w(K2O)/w(Na2O), and Rittmann index δ of 1.67～3.78. They are enriched in LREE with an average LREE/HREE ratio of 10.94×10-6, and generally depleted Eu with an minimum δEu less than 0.31 especially in the ignimbrite and biotite granite, which have experienced a significant process of separation and crystallization of plagioclases.ΣREE at the main stage of the magmatic activity decreases with time.

地球化学特征显示矿区火山——侵入岩属于贫钠富钾的S型花岗岩，其w(SiO2)值为62.42%～78.02%、w(K2O +Na2O)值为7.66%～9.13%、w(K2O)/w(Na2O)比值为1.18～2.62、里特曼指数δ为1.67～3.78；矿区岩石LREE/HREE比值平均为10.94×10-6，属于轻稀土富集型；Eu普遍亏损，特别是熔结凝灰岩、黑云母花岗岩δEu＜0.31，表明经历了显著的斜长石的分离结晶作用；自早至晚主阶段岩浆活动稀土总量逐渐降低。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。